Pith Number

pith:EEVDZGKW

pith:2009:EEVDZGKWYFYCNWQZGXHVFLP4PC

not attested not anchored not stored refs pending

Form-Type Calabi-Yau Equations

Damin Wu, Jixiang Fu, Zhizhang Wang

arxiv:0908.0577 v4 · 2009-08-05 · math.DG · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEVDZGKWYFYCNWQZGXHVFLP4PC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:39:19.641894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

212a3c9956c17026da1935cf52adfc78a3e01a98949abd860f8348648bb4553d

Aliases

arxiv: 0908.0577 · arxiv_version: 0908.0577v4 · doi: 10.48550/arxiv.0908.0577 · pith_short_12: EEVDZGKWYFYC · pith_short_16: EEVDZGKWYFYCNWQZ · pith_short_8: EEVDZGKW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EEVDZGKWYFYCNWQZGXHVFLP4PC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 212a3c9956c17026da1935cf52adfc78a3e01a98949abd860f8348648bb4553d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50686a55c7bc675dcb0ce4177aa5637dea37e317d53742c959f632eb6ce200fb",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-05T02:26:20Z",
    "title_canon_sha256": "b66de7ff7635c017ff9c4a21ead48e8ed693a911e2b265202595b2ea5189f4da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0577",
    "kind": "arxiv",
    "version": 4
  }
}